US3561465A - Jet level sensor - Google Patents

Jet level sensor Download PDF

Info

Publication number
US3561465A
US3561465A US3561465DA US3561465A US 3561465 A US3561465 A US 3561465A US 3561465D A US3561465D A US 3561465DA US 3561465 A US3561465 A US 3561465A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
jet
sensor
liquid
flow
means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Paul A De Graaf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parker-Hannifin Corp
Original Assignee
Parker-Hannifin Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm
    • G01F23/14Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm by measurement of pressure
    • G01F23/16Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid
    • G01F23/161Indicating, recording, or alarm devices being actuated by mechanical or fluid means, e.g. using gas, mercury, or a diaphragm as transmitting element, or by a column of liquid for discrete levels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/206Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2065Responsive to condition external of system
    • Y10T137/2071And causing change or correction of sensed condition
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/206Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2273Device including linearly-aligned power stream emitter and power stream collector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7287Liquid level responsive or maintaining systems

Abstract

This disclosure relates to a sensor for operating a flow control valve pilot. The sensor incorporates a jet which is interrupted by rising liquid within a container and includes an aspirator for picking up liquid and deflecting the jet to render same ineffective.

Description

United States Patent lnventor Paul A. de Graaf Los Angeles, Calif. Appl. No. 822,403 Filed May 7, 1969 Patented Feb. 9, 1971 Assignee Parker-Hannifin Corporation Cleveland, Ohio a corporation of Ohio JET LEVEL SENSOR 7 Claims, 3 Drawing Figs.

US. Cl 137/81.5, 137/386 Int. Cl F151: 1/14 FieldofSearch 137/815, 386, 389, 390, 393; 73/548 [56] References Cited UNITED STATES PATENTS 2,333,044 10/1943 Rosch 73/548 3,020,924 2/1962 Davies.... 137/386 3,269,404 8/1966 Lebow.... 137/386X 3,267,949 8/1966 Adams 137/815 3,277,914 10/1966 Manion 137/815 Primary Examiner-William F. ODea Assistant Examiner-David R. Matthews Att0rney-Diller, Brown, Ramik & Holt ABSTRACT: This disclosure relates to a sensor for operating a flow control valve pilot. The sensor incorporates a jet which is interrupted by rising liquid within a container and includes an aspirator for picking up liquid and deflecting the jet to render same ineffective.

,PATENTEUFEH 91am 3 15 1 455 INVENTOR PAU L A. de GRAN ATTORNEYS JET LEVEL SENSOR This invention specifically relates to the addition of an aspirator to a jet level sensor to effect deflection of a control jet as opposed to resistance to flow byrising liquid whereby a higher jet pressure may be utilized for more effective control.

Previously jet level sensors have been provided for automatically actuating pilots of filling valves to effect automatic shutoff when liquid reaches a predetermined level. These sensors employ a liquid jet directed across a void to a receiver with the jet being interrupted by liquid rising within the void. Prior sensors were limited to 20 psi. pressures in that higher pressure jets are not sufficiently affected by the presence of intervening liquid. j

Jet level sensors may operate at pressures as high as 150 psi. by providing an aspirator at the discharge end of a jet nozzle for drawing rising liquid transversely across a flowing jet to deflect same from its normal path to a receiver. Such sensors do not rely upon the presence of intervening liquid to disrupt jet flow and are not of limited operating pressure. v

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawing:

In the drawing:

FIG. 1 is a schematic sectional view through a tank having level control filling mechanism. 1

FIG. 2 is an enlarged schematic sectional view showing control valve operated by the sensor.

FIG. 3 is an enlarged sectional view through the sensor.

A typical tank filling system is shown in FIG. 1 as including tank 5 having filler conduit 6 connected to an inlet of shutoff valve 7. Jet level sensor 8,positioned at a desired level in tank 5, is connected to conduit 6 by supply line 9 and to pilot 10 of valve 7 by pilot line 11. i

Details of typical shutoff valve 7 are found in FIG. 2. Valve 7 has pressure controlled diaphragm mounted valve member 12 controlling flow from conduit 6 into tank 5. Small passage 13 in valve member 12 permits pressure build up above valve member 12 to close same.

Pilot 10 controls pressure above valve member 12 and includes vent 14, which is larger than passage 13, controlled by pilot valve member 15 constantly urged to closed position by spring 16. Pressure controlled diaphragm mounted piston 17 is connected to valve member 15 for unseating same in response to pressure exerted on'piston 17 through pilot line 11. l

Details of new sensor 8 are shown in-FIG. 3 as including housing 20 having central opening 21. Bore 22 extends through housing 20 with fitting 23 of supply line 9 threaded in one end and end portion 24 at other end opening into opening 21. Central portion of bore 22 is restricted to form jet nonle 25. Housing 20 has aspirator 26 in form of a bore opening upwardly into end portion 24 for drawing liquid in tank 5 into end portion 24 by flowing liquid jet.

Housing 20 has bore 27 on opposite side of housing 21 from bore 22 aligned with bore 22. Receiver 28 is mounted in bore 27 at opening 21 for receiving liquid jet from jet nozzle 25. The opposite end of bore 27 has threaded therein fitting 29 of pilot line 1 l to direct jet pressure into pilot 10.

Tank 5 is filled by coupling to adapter 30 thereof, carried by conduit 6, filling nozzle 31, and initiating flow by turning control handle 32 (FIG. 2). Liquid flows through line 9 to sensor 8 to apply pilot opening pressure to piston 17 through line 11,

venting space in valve 7 above valve member 12 through vent l4.

Liquid entering valve 7 from conduit 6 moves valve member 12 to open position and flows through opening 33 in valve 7 into tank 5. Flow into tank 5 continues until liquid reaches sensor 8 at which time jet flow from nozzle 25 to receiver 28 is disrupted and pressure on piston 17 is reduced, permitting spring 16 to move valve member 15 to block flow from passage 13 to vent l4. Hressure in valve 7 above valve member 15 moves valve member 15 to closed position to stop flow into tank 5.

In prior sensors flow of liquid into opening 21 was relied upon to disrupt jet flowing from jet nozzle 25 into receiver 28. This provided an effective control when liquid'delivered to sensor had a maximum pressure of 20 psi. Increased pressures permit jet flow through liquid in opening 21 sufficiently to prevent difficulties in obtaining assured accurate control of pilot l0.

Aspirator 26 permits flow of liquid jet through end portion 24 to draw liquid, which has reached sensor level, into end portion 24 normal to axis of jet flow. Aspirated liquid, striking liquid jet at right angles to axis of flow, deflects liquid jet sufficiently to miss small entrance of receiver 28. Thus, liquid at higher pressures may be directed to sensor 8 without effecting efficient operation thereof. Pressure of liquid directed to sensor 8 may be that of liquid in conduit 6 which may be on the order of psi. and higher.

Although only a single embodiment of sensor has been illustrated and described, it is to be understood that minor modifications may be made therein without departing from the spirit of the invention.

lclaim:

l. A jet sensor particularly adapted to detect the pressure of liquid, said sensor comprising a jet noule for directing a jet flow of liquid along a predetermined axis, a receiver spaced from said jet nozzle and aligned with the axis of jet flow therefrom the receiving a jet flow from said jet nozzle to maintain a pressurized control, and means for directing detected liquid transversely of the axis of said jet: nozzle against jet flow therefrom to deflect such jet flow away from said receiver and thus remove the pressurized control.

2. The jet sensor of claim 1 wherein said means for directing detected liquid are aspirator means.

3. The jet sensor of claim 1 wherein said means for directing detected liquid are aspirator means effected by jet flow from said jet nozzle.

4. The jet sensor of claim I wherein said means for directing detected liquid are aspirator means, said aspirator means including an axial bore into which said jet nozzle opens and a transverse bore opening into said axial bore adjacent said jet nozzle.

5. The jet sensor of claim 1 wherein said sensor is a liquid level sensor.

6. The jet sensor of claim 1 wherein said sensor is a liquid level sensor and said sensor is part of a container filling apparatus.

7. The jet sensor of claim 1 wherein said sensor is a liquid level sensor and said sensor is part of a container filling ap paratus, said apparatus including a filler conduit, a shutoff valve controlling flow from said filler conduit into the container, said shutoff valve having a pilot control connected to and positioned by said sensor, and said sensor being connected to said filler conduit for effecting the jet flow thereof.

3 33 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 561,465 Dated February 9, 1971 Inventor(s) PAUL A. deGRAAF 'It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

1'- Column 2, line 33, read presence for "pressure";

Line 37, read for for "the".

Signed and sealed this 9th day of January 1973 (SEAL) Attest:

EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer Commissioner of Patent

Claims (7)

1. A jet sensor particularly adapted to detect the pressure of liquid, said sensor comprising a jet nozzle for directing a jet flow of liquid along a predetermined axis, a receiver spaced from said jet nozzle and aligned with the axis of jet flow therefrom the receiving a jet flow from said jet nozzle to maintain a pressurized control, and means for directing detected liquid transversely of the axis of said jet nozzle against jet flow therefrom to deflect such jet flow away from said receiver and thus remove the pressurized control.
2. The jet sensor of claim 1 wherein said means for directing detected liquid are aspirator means.
3. The jet sensor of claim 1 wherein said means for directing detected liquid are aspirator means effected by jet flow from said jet nozzle.
4. The jet sensor of claim 1 wherein said means for directing detected liquid are aspirator means, said aspirator means including an axial bore into which said jet nozzle opens and a transverse bore opening into said axial bore adjacent said jet nozzle.
5. The jet sensor of claim 1 wherein said sensor is a liquid level sensor.
6. The jet sensor of claim 1 wherein said sensor is a liquid level sensor and said sensor is part of a container filling apparatus.
7. The jet sensor of claim 1 wherein said sensor is a liquid level sensor and said sensor is part of a container filling apparatus, said apparatus including a filler conduit, a shutoff valve controlling flow from said filler conduit into the container, said shutoff valve having a pilot control connected to and positioned by said sensor, and said sensor being connected to said filler conduit for effecting the jet flow thereof.
US3561465A 1969-05-07 1969-05-07 Jet level sensor Expired - Lifetime US3561465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US82240369 true 1969-05-07 1969-05-07

Publications (1)

Publication Number Publication Date
US3561465A true US3561465A (en) 1971-02-09

Family

ID=25235936

Family Applications (1)

Application Number Title Priority Date Filing Date
US3561465A Expired - Lifetime US3561465A (en) 1969-05-07 1969-05-07 Jet level sensor

Country Status (1)

Country Link
US (1) US3561465A (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680573A (en) * 1970-05-05 1972-08-01 American Standard Inc Pilot valve operated fluidic valve
US3703907A (en) * 1970-10-30 1972-11-28 George B Richards Fluid amplifiers
US3762445A (en) * 1971-11-29 1973-10-02 Agency Ind Science Techn Fluidic device
US3771549A (en) * 1971-10-21 1973-11-13 Dover Corp System for loading and unloading a container at its bottom
US3830096A (en) * 1972-07-18 1974-08-20 Meidensha Electric Mfg Co Ltd A load insensitive type fluid restrictor
US4024887A (en) * 1975-11-24 1977-05-24 Vought Corporation Automatic valving system
US4075912A (en) * 1976-12-20 1978-02-28 General Motors Corporation Transmission with sump oil level responsive controls
US4148334A (en) * 1975-09-05 1979-04-10 Fluid Device Corporation Liquid level control sytem
US4161188A (en) * 1977-12-02 1979-07-17 Parker-Hannifin Corporation Jet type liquid level sensor and system
US4211249A (en) * 1978-09-07 1980-07-08 Fluid Device Corporation Liquid level control system
US4252017A (en) * 1979-08-02 1981-02-24 Zaslavsky Leonid I Apparatus for monitoring fluid level in a vessel
US4292996A (en) * 1978-10-24 1981-10-06 Omuv Orvosi Muszer Es Vasipari Szovetkezet Stop valve
US4312373A (en) * 1980-03-24 1982-01-26 Parker-Hannifin Corporation Internal valve
EP0100666A1 (en) * 1982-08-02 1984-02-15 Daniel N. Campau Liquid level control device
US4515178A (en) * 1984-05-29 1985-05-07 Campau Daniel N Liquid level control device
US4522228A (en) * 1984-06-12 1985-06-11 Campau Daniel N Fluidic level control system
US4527593A (en) * 1983-05-04 1985-07-09 Campau Daniel N Apparatus and system for filling one or more containers with a liquid to a predetermined level
US5285812A (en) * 1992-09-09 1994-02-15 Hr Textron, Inc. Jet level sensor for fuel tanks
US6837262B2 (en) * 2002-01-15 2005-01-04 Adel Wiggins Group Non tank pressurizing fast fill receiver and system for vehicles
US20050166966A1 (en) * 2002-01-15 2005-08-04 Jose Cortez Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles
US20110315271A1 (en) * 2010-01-28 2011-12-29 Eurocopter Device for filling a tank by gravity or under pressure
US8430117B2 (en) 2010-04-26 2013-04-30 Michael J. Mitrovich Refueling apparatus
US8955561B2 (en) 2011-10-04 2015-02-17 Spillx Llc Refilling apparatus with jet level sensor
WO2015089510A1 (en) * 2013-12-13 2015-06-18 Flomax International, Inc. Fuel tank vent and shutoff valve
US9458006B2 (en) 2013-03-15 2016-10-04 Adel Wiggins Group Non-pressurized fluid level shutoff for fuel tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333044A (en) * 1940-05-28 1943-10-26 Gen Electric Governing mechanism
US3020924A (en) * 1959-09-14 1962-02-13 Parker Hanaifin Corp Automatic shut-off valve
US3267949A (en) * 1964-03-02 1966-08-23 Moore Products Co Level control apparatus
US3269404A (en) * 1962-12-03 1966-08-30 Parker Hannifin Corp Automatic shutoff valve
US3277914A (en) * 1963-12-12 1966-10-11 Bowles Eng Corp Automatic fill valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333044A (en) * 1940-05-28 1943-10-26 Gen Electric Governing mechanism
US3020924A (en) * 1959-09-14 1962-02-13 Parker Hanaifin Corp Automatic shut-off valve
US3269404A (en) * 1962-12-03 1966-08-30 Parker Hannifin Corp Automatic shutoff valve
US3277914A (en) * 1963-12-12 1966-10-11 Bowles Eng Corp Automatic fill valve
US3267949A (en) * 1964-03-02 1966-08-23 Moore Products Co Level control apparatus

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3680573A (en) * 1970-05-05 1972-08-01 American Standard Inc Pilot valve operated fluidic valve
US3703907A (en) * 1970-10-30 1972-11-28 George B Richards Fluid amplifiers
US3771549A (en) * 1971-10-21 1973-11-13 Dover Corp System for loading and unloading a container at its bottom
US3762445A (en) * 1971-11-29 1973-10-02 Agency Ind Science Techn Fluidic device
US3830096A (en) * 1972-07-18 1974-08-20 Meidensha Electric Mfg Co Ltd A load insensitive type fluid restrictor
US4148334A (en) * 1975-09-05 1979-04-10 Fluid Device Corporation Liquid level control sytem
US4024887A (en) * 1975-11-24 1977-05-24 Vought Corporation Automatic valving system
US4075912A (en) * 1976-12-20 1978-02-28 General Motors Corporation Transmission with sump oil level responsive controls
US4161188A (en) * 1977-12-02 1979-07-17 Parker-Hannifin Corporation Jet type liquid level sensor and system
US4211249A (en) * 1978-09-07 1980-07-08 Fluid Device Corporation Liquid level control system
US4292996A (en) * 1978-10-24 1981-10-06 Omuv Orvosi Muszer Es Vasipari Szovetkezet Stop valve
US4252017A (en) * 1979-08-02 1981-02-24 Zaslavsky Leonid I Apparatus for monitoring fluid level in a vessel
US4312373A (en) * 1980-03-24 1982-01-26 Parker-Hannifin Corporation Internal valve
EP0100666A1 (en) * 1982-08-02 1984-02-15 Daniel N. Campau Liquid level control device
EP0125789B1 (en) * 1983-05-04 1988-08-31 Flow Rite Control, Ltd. Apparatus for filling a container with a liquid to a determined level
US4527593A (en) * 1983-05-04 1985-07-09 Campau Daniel N Apparatus and system for filling one or more containers with a liquid to a predetermined level
US4515178A (en) * 1984-05-29 1985-05-07 Campau Daniel N Liquid level control device
US4522228A (en) * 1984-06-12 1985-06-11 Campau Daniel N Fluidic level control system
US5285812A (en) * 1992-09-09 1994-02-15 Hr Textron, Inc. Jet level sensor for fuel tanks
US6837262B2 (en) * 2002-01-15 2005-01-04 Adel Wiggins Group Non tank pressurizing fast fill receiver and system for vehicles
US20050166966A1 (en) * 2002-01-15 2005-08-04 Jose Cortez Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles
US7258130B2 (en) 2002-01-15 2007-08-21 Adel Wiggins Group Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles
US20080011359A1 (en) * 2002-01-15 2008-01-17 Adel Wiggins Group Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles
US7757709B2 (en) 2002-01-15 2010-07-20 Adel Wiggins Group Integrated jet fluid level shutoff sensor and fuel tank vent for vehicles
US8899282B2 (en) * 2010-01-28 2014-12-02 Airbus Helicopters Device for filling a tank by gravity or under pressure
US20110315271A1 (en) * 2010-01-28 2011-12-29 Eurocopter Device for filling a tank by gravity or under pressure
US8430117B2 (en) 2010-04-26 2013-04-30 Michael J. Mitrovich Refueling apparatus
US8955561B2 (en) 2011-10-04 2015-02-17 Spillx Llc Refilling apparatus with jet level sensor
US9458006B2 (en) 2013-03-15 2016-10-04 Adel Wiggins Group Non-pressurized fluid level shutoff for fuel tank
WO2015089510A1 (en) * 2013-12-13 2015-06-18 Flomax International, Inc. Fuel tank vent and shutoff valve
US9772043B2 (en) 2013-12-13 2017-09-26 Flowmax International, Inc. Fuel tank vent and shutoff valve

Similar Documents

Publication Publication Date Title
US3674061A (en) Liquid transfer apparatus with pressure-sensitive automatic shut-off nozzle
US3603359A (en) Automatic trip safety fill nozzle
US3524589A (en) Liquid-spray device
US3578789A (en) Toy gun
US3439837A (en) Leak detecting system and method
US3183723A (en) Leak detector
US3386462A (en) Liquid level control
US2976897A (en) Reusable pressurized canister
US3899009A (en) Fuel nozzle vapor return adaptor
US4210168A (en) Pressure-responsive valve unit for a fluid container
US3107693A (en) Pneumatic relay
US4095626A (en) Vapor recovery in a liquid dispensing unit
US5810045A (en) Valve device for introducing particulate materials into a high pressure air stream
US3848631A (en) Beer keg protective device
US2706487A (en) Release valves
US4182354A (en) Method and apparatus for flow diversion in a high pressure fluid delivery system
US6095204A (en) Vapor recovery system accommodating ORVR vehicles
US5285812A (en) Jet level sensor for fuel tanks
US4049018A (en) Shut-off and regulator device for controllable mechanisms intended for installation in pipelines
US4305422A (en) Filler valve for a gas tank
US2189643A (en) Dispensing apparatus
US2992858A (en) System for conveying fluent material
US2153240A (en) Spraying machine
US4161957A (en) Leakage protective apparatus for storage containers or the like
US3301486A (en) Liquid dispensing apparatus